Imageboxes - Add images to checkboxes

Hey @sylvainjule, since i had problems with renaming the Files in the Panel and the Reference Error (Renaming of File/Image breaks Reference in Files-Field) i stumbled over your ImageBoxes Plugin which looks quite nice at first glance.

But when i was trying to implement it, i get errors in the panel. I pasted your default field configs in a structure Field and get the following error:

Here is the YAML-File for the setup:

imageFilesStructure:
    extends: fields/_presets/native/_structure
    width: 1/2
    label:
      en: Image Entries
      de: Bildelemente
    fields:
      imageFile:
        label: Bilder
        type: imageboxes
        columns: 3
        options: query
        query:
          fetch: page.images
          text: "{{ file.filename }}"
          value: "{{ file.id }}"
          image: "{{ file.url }}"
      objectFit:
        extends: fields/_presets/native/_select
        options:
          cover: Fill
          contain: Contain
        default: cover

Do you have any idea, what i am doing wrong?

Kind Regards Tobi